Baby Clothing Size Chart – Age, Height & CM (AU, US, UK, EU)
Baby Clothing Size Chart – Age, Height & CM (AU, US, UK, EU)
This baby clothing size chart helps you estimate the best clothing size using approximate age ranges and body measurements in centimetres (CM), with a conversion view across Australian (AU), United States (US), United Kingdom (UK), and European (EU) sizing. Because babies grow at different rates and brands label sizes differently, height and measurements are often more reliable than age alone.
📏 How to Measure a Baby (CM)
- Height (Length): Measure from the top of the head to the heel (lying down).
- Chest: Measure around the fullest part of the chest, tape level.
- Waist: Measure around the natural waist (not too tight).
- Hips: Measure around the fullest part of the hips/seat.
For best results, measure over a nappy/diaper and choose the size that matches your baby’s length range. If between sizes, many parents choose the larger size for comfort and growing room.
👶 Baby Clothing Size Chart (Newborn to 24 Months)
| Approx. Age | Height (CM) | Chest (CM) | Waist (CM) | Hips (CM) | AU | US | UK | EU |
|---|---|---|---|---|---|---|---|---|
| Newborn | 50–56 | 36–38 | 36–38 | 38–40 | 0000 | NB | Newborn | 50–56 |
| 0–3 months | 56–62 | 38–40 | 38–40 | 40–42 | 000 | 0–3M | 0–3 | 56–62 |
| 3–6 months | 62–68 | 40–42 | 40–42 | 42–44 | 00 | 3–6M | 3–6 | 62–68 |
| 6–9 months | 68–74 | 42–44 | 42–44 | 44–46 | 1 | 6–9M | 6–9 | 68–74 |
| 9–12 months | 74–80 | 44–46 | 44–46 | 46–48 | 1 | 9–12M | 9–12 | 74–80 |
| 12–18 months | 80–86 | 46–48 | 46–48 | 48–50 | 2 | 12–18M | 12–18 | 80–86 |
| 18–24 months | 86–92 | 48–50 | 48–50 | 50–52 | 2 | 18–24M | 18–24 | 86–92 |
📌 Baby Clothing Sizing Tips
- Length/height is usually the best starting point for baby sizing.
- US sizes are often labelled by months (e.g., 0–3M, 3–6M).
- EU baby sizes commonly align with length in CM (e.g., EU 62 fits ~62 cm long).
- If your baby is between sizes, many parents choose the larger size for comfort and nappy/diaper room.
- Brand charts can differ (especially for fitted sleepwear, bodysuits, and onesies).
⚠️ Important Disclaimer
This baby clothing size chart is provided for general informational purposes only. All age ranges, measurements, and international size conversions are approximate and may vary significantly by brand, garment style, fabric, manufacturing tolerances, regional labelling practices, and individual baby growth patterns and body shape. No warranty or guarantee (express or implied) is made regarding accuracy, fit, or suitability. You are solely responsible for verifying sizing using the official sizing guide provided by the relevant clothing brand or retailer before purchase. This content does not constitute professional fitting, tailoring, medical, or consumer advice.
